Swiss health insurance deductible: the maths in four numbers

Swiss health insurance deductible explained simply: combine monthly premium, deductible, co-payment and hospital contribution to choose the right level.

Quick overview

What matters before you compare

Your deductible sets how much you pay first each year before mandatory health insurance takes over covered services. It is one of the biggest levers for balancing premium savings and financial risk.

  • A low deductible gives more predictability but raises your monthly premium.
  • A high deductible usually pays off when you expect only limited medical costs.
  • Always choose it together with your insurance model and available cash buffer.

1. The 4-cost rule

Swiss health insurance deductible: the math behind it is simpler than it looks. You only need to track four numbers: your monthly premium, the deductible (CHF 300 or 2,500), the 10% co-payment capped at CHF 700, and the CHF 15 per day hospital contribution. With those four numbers you can estimate almost any mandatory-insurance bill before it arrives.

This article walks through the formula, shows when each cost layer applies and breaks down a real hospital invoice so the mechanism becomes practical instead of abstract.

Mandatory health insurance works like a sequence of four cost layers:

  • Monthly premium – your fixed membership fee. It depends on canton, age group, model and deductible, and for adults it usually lands in the mid three-figure range.
  • Deductible – the first CHF 300 to 2,500 per year for covered services stays with you.
  • 10% co-payment – after that you keep paying 10% of costs until your share reaches CHF 700 (children: CHF 350).
  • Hospital contribution – CHF 15 per inpatient day for meals and ancillary costs. Children, students up to 25 and pregnant women are exempt.

2. Deductible levels: CHF 300 vs 2,500

There are officially six options (CHF 300 | 500 | 1,000 | 1,500 | 2,000 | 2,500). In practice most households end up comparing the two extremes.

  • CHF 300 – usually best when you expect more than roughly CHF 1,800 per year in healthcare costs.
  • CHF 2,500 – usually best below that threshold, with premiums often around 25% lower.
OptionBest forPremium effect*
CHF 300Frequent doctor visits, medication, pregnancyBaseline
CHF 2,500Rare doctor visits, solid emergency buffer≈ 25% lower

*The exact percentage varies by canton and insurer, but the direction stays the same: a higher deductible lowers the premium.

Because the co-payment is capped at CHF 700, your worst year is fixed from the start. You never pay more than this towards covered treatment:

  • Deductible CHF 300 – at most CHF 1,000 a year.
  • Deductible CHF 2,500 – at most CHF 3,200 a year.

That turns the choice into a question you can answer yourself. If you expect medical costs above roughly CHF 1,800 to 2,000 — regular medication, physiotherapy, planned surgery — take CHF 300. If you are healthy, rarely see a doctor and can cover CHF 3,200 out of reserves, take CHF 2,500 and save on the premium every month. The levels in between raise the premium noticeably while barely lowering the risk.

3. A real hospital bill (CHF 2,600)

Maria, 31, lives in Zurich, has the standard model and a CHF 300 deductible. She has had no prior treatment in 2025. After a medical emergency she spends three nights in hospital.

Cost itemMaria's share (CHF)Running total
Hospital contribution (CHF 15 × 3 nights†)4545
Deductible300345
10% co-payment on the remaining CHF 2,255225.5570.5

† The discharge day is counted only partially, which is why only three nights are billed here.

4. Five proven savings levers

  • Choose HMO or Telmed: Often 10% to 20% cheaper because you accept a first contact point.
  • Raise the deductible deliberately: If you stay below roughly CHF 1,800 in yearly costs, CHF 2,500 is often the better deal.
  • Pay annually: Some insurers grant 1% to 2% discount for upfront payment.
  • Remove accident cover if applicable: Employees are usually already insured through their employer.
  • Apply for premium subsidies: A significant share of residents qualifies, depending on canton and income.

Want to compare current premiums? Use our free Swiss health insurance comparison.

Decision aid

Which deductible fits you?

Between the lowest and the highest deductible sits roughly CHF 1,400 to 1,700 in annual premium savings. The break-even therefore lands around CHF 1,900 in expected health costs - below that the high deductible wins, above it the low one.

DeductibleFits ifWhat you carry in a bad year
CHF 2,500You have barely seen a doctor in recent years, take no ongoing medication and have CHF 3,200 available.The cheapest option for healthy adults. Expected costs below roughly CHF 1,900 per year.
CHF 1,500 - 2,000You are broadly healthy but do not want to carry the full risk.A compromise with a smaller saving. Rarely optimal on paper, but more predictable.
CHF 300You have ongoing treatment, a chronic condition, regular medication or an operation ahead.Cheaper from roughly CHF 1,900 in annual costs. Also right if a CHF 2,000 bill would put you under pressure.
Children: CHF 0Almost always.The saving up to the highest children's deductible is CHF 100 to 200 per year and is used up by one or two doctor visits.

These figures are guide values and differ by canton, insurer and age. Alongside the arithmetic, your liquidity decides: a high deductible only saves money if you can actually carry the cost in a bad year. The deductible can only be changed with effect from 1 January.

FAQ

Frequently asked questions

Is my deductible reset every year?

Yes. The count starts again from zero on January 1.

Can I change the deductible during the year?

No. Changes only take effect on the next January 1.

Does the 10% co-payment also apply to medication?

Yes, for covered medication, but only after the deductible has been reached and only up to the annual cap.

Does pregnancy count towards the deductible?

No. Maternity benefits — check-ups, birth and aftercare — are covered without deductible and without co-payment. The CHF 15 daily hospital contribution does not apply either.

What happens with a very large bill?

Your share is capped: you pay the deductible plus at most CHF 700 in co-payment. Beyond that basic insurance covers the treatment in full — for an inpatient stay only the CHF 15 per day remains.

How this page is maintained

Written by
Nexin editorial
Reviewed by
Thomas SchallertInsurance intermediary, VBV-certified
Published
Last reviewed
Deadlines, amounts and legal references checked against the Health Insurance Act and its ordinances. Content unchanged; extended with a decision aid that pairs each option with a recommendation.
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Sources

Changes
  • Decision aid added: options paired with a recommendation per situation.
  • Moved from the blog into the knowledge section. The old address redirects permanently.